CN1669828A - Decorative article and timepiece - Google Patents

Abstract

A decorative article 1 A for a timepiece or the like is provided having a superior aesthetic appearance that can be maintained over a long period of time. The decorative article 1 A has a substrate 2 wherein at least part of the surface vicinity is primarily configured from Ti and/or stainless steel, a first coat 3 formed on the substrate 2, and a second coat 4 formed on the first coat 3. The first coat 3 is configured primarily from TiCN, and the combined C content and N content in the first coat 3 is 5 to 30 wt %. The second coat 4 is configured primarily from M (where M is one or more elements selected from Ti, Pt, Pd, and In). The average thickness of the first coat 3 is 0.15 to 0.5 mum. The average thickness of the second coat 4 is 0.15 to 0.5 mum.

Description

Ornament and clock and watch

Technical field

The present invention relates to ornament and clock and watch.

Background technology

The ornament that the clock and watch exterior trim is used requires the outward appearance grace.In order to reach this purpose, the general at present constituent material that adopts Pt and Ag etc. as ornament.

Yet, by the common ornament made of relatively low material as described above (particularly clock and watch exterior trim articles for use or the ornament taken with oneself etc.) of hardness of metal materials, its surface is impaired easily, has the problem because of aesthetic property is obviously reduced.

In order to address this problem,, adopt the technology (for example with reference to patent documentation 1) of for example substrate surface that is made of stainless steel or Ti etc. being carried out nitrogen treatment with nitrogen as the technology of sclerosis base material.

Yet nitrogen treatment can make surperficial roughening, influences polished appearance.Particularly can make the product minute surface fuzzy and lose decorative effect.

Therefore, in following process, take to be polished to the method for minute surface by machine glazed finish.Yet the shortcoming of this method is, owing to polishing makes hard cured layer by excessively grinding, has reduced hardness, and can not handle the product with the shape (being not suitable for the shape of polishing wheel) that can't polish.

In addition, above-mentioned base material through nitrogen treatment is not suitable as (particularly white and the silvery white) ornament that requires the outward appearance grace because of its tone lacks feeling of high class.

Patent documentation 1: the spy opens flat 11-318520 communique

Summary of the invention

The purpose of this invention is to provide and to keep the ornament of aesthetic look for a long time, and the clock and watch with described ornament are provided.

Can reach this purpose by following the present invention.

Ornament of the present invention is characterised in that it has base material, the 1st tunicle and the 2nd tunicle, and the described base material part of near surface at least mainly is made of Ti and/or stainless steel; Described the 1st tunicle is located on the described base material, mainly is made of TiCN; Described the 2nd tunicle mainly is made up of M (a kind of, two or more element that the M representative is selected from Ti, Pt, Pd and In), and it is located at opposing face one side described the 1st tunicle and described base material opposite face; C content in described the 1st tunicle and N content sum are 5 weight %～30 weight %.

The ornament that can keep aesthetic look for a long time can be provided thus.

Ornament of the present invention is characterised in that it has base material, the 1st tunicle and the 2nd tunicle, and the described base material part of near surface at least mainly is made of Ti and/or stainless steel; Described the 1st tunicle is located on the described base material, mainly is made of TiCN; Described the 2nd tunicle mainly is made of IiCN, and it is located at opposing face one side described the 1st tunicle and described base material opposite face; C content in described the 2nd tunicle and N content sum are less than C content in described the 1st tunicle and N content sum; C content in described the 1st tunicle and N content sum are 5 weight %～30 weight %.

The ornament that can keep aesthetic look for a long time can be provided thus.

For ornament of the present invention, C content in preferred described the 2nd tunicle and N content sum be 2 weight %～10 weight % not.

Ornament outward appearance grace can be made like this and graceful outward appearance can be kept for a long time.

For ornament of the present invention, the C content in preferred described the 1st tunicle is 3 weight %～12 weight %.

Ornament outward appearance grace can be made like this and graceful outward appearance can be kept for a long time.

For ornament of the present invention, the N content in preferred described the 1st tunicle is 2 weight %～18 weight %.

Ornament outward appearance grace can be made like this and graceful outward appearance can be kept for a long time.

For ornament of the present invention, the C content in preferred described the 1st tunicle is less than the N content in described the 1st tunicle.

Can make the aesthetic look highly significant of ornament thus.

For ornament of the present invention, the average thickness of preferred described the 1st tunicle is 1.6 μ m～5 μ m.

Can fully avoid the internal stress of the 1st tunicle to become big thus, make the difficult vestige that produces scuffing or collision of ornament etc., can keep graceful outward appearance for a long time.

For ornament of the present invention, the average thickness of preferred described the 2nd tunicle is 0.15 μ m～0.5 μ m.

Can make ornament have enough hardness thus, and can make the outward appearance of ornament very graceful, and can keep graceful outward appearance for a long time.

For ornament of the present invention, preferably become embrane method to form described the 1st tunicle by gas phase.

Can form reliably thus have uniform thickness (deviation of thickness is little) and with the 1st excellent especially tunicle of base material adaptation (comprising adaptation) between basalis and base material.Consequently, can make the taste outward appearance of ornament and durability excellent especially.In addition,, also can make the deviation of thickness enough little, thereby help improving the reliability of ornament even formed the 1st tunicle is thinner.

For ornament of the present invention, described gas phase becomes the plating of embrane method preferred ion.

Can form reliably thus and have uniform thickness (deviation of thickness is little) and excellent especially with the adaptation (comprising adaptation) of base material between basalis and base material.Consequently, can make the taste outward appearance of ornament and durability excellent especially.In addition,, also can make the deviation of thickness enough little, thereby help improving the reliability of ornament even formed the 1st tunicle is thinner.

For ornament of the present invention, preferably form described the 2nd tunicle by ion plating.

Thus, can make the adaptation of the 2nd tunicle very excellent.In addition, (particularly under the less situation of the thickness of formed the 2nd tunicle) thickness deviation is less, and is easy to form uniform the 2nd tunicle.Therefore can make the outward appearance of ornament very graceful, and can keep graceful outward appearance for a long time.

For ornament of the present invention, preferably between described base material and described the 1st tunicle, has one deck basalis at least.

Can improve the adaptation between base material and the 1st tunicle thus, thereby can make the reliability of ornament and durability excellent more.

For ornament of the present invention, preferably has the main layer of forming by Ti as described basalis.

Can further improve the adaptation between base material and the 1st tunicle thus, thereby can make the reliability of ornament and durability excellent more.

For ornament of the present invention, the average thickness of preferred described basalis is 0.1 μ m～2.0 μ m.

Can avoid the internal stress of basalis to become big thus, can effectively prevent the generation of crackle, thereby further improve the adaptation between base material and the 1st tunicle.

For ornament of the present invention, preferably being provided with the vickers hardness hv that the face of described the 2nd tunicle one side records under 10gf load is 600～1000.

The aesthetic look that can keep thus, ornament more chronically.

Ornament of the present invention is preferably as clock and watch exterior trim part.

Clock and watch normally are subject to the ornament of external impact with the exterior trim part, and in the durability that requires also to require in attractive in appearance to use, and the present invention has satisfied above requirement simultaneously.

Clock and watch of the present invention are characterised in that it has ornament of the present invention.

The clock and watch of long-term maintenance aesthetic look can be provided thus.

By the present invention, the ornament of long-term maintenance aesthetic look can be provided, and the clock and watch with described ornament can be provided.

Description of drawings

Fig. 1 represents that the present invention decorates the profile of position 1 embodiment

Fig. 2 represents ornament manufacture method shown in Figure 1 profile preferred embodiment

Fig. 3 represents that the present invention decorates the profile of position 2 embodiments

Fig. 4 represents ornament manufacture method shown in Figure 3 profile preferred embodiment

Fig. 5 represents clock and watch of the present invention (portable timekeeper) part sectioned view preferred embodiment

Symbol description

1A, 1B ornament; 2 base materials; 3 the 1st tunicles; 4 the 2nd tunicles; 5 basalises; 10 wrist-watches (portable timekeeper); 22 housings (watchcase); 23 bottoms; 24 table circles (shell limit); 25 glass plates; 26 arbor pipes; 27 table handles; 271 axial regions; 272 grooves; 28 plastic gaskets; 29 plastic gaskets; 30 rubber packings (table is liner); 40 rubber packings (bottom liner); 50 junction surfaces (sealing)

The specific embodiment

Followingly describe with reference to the specific embodiment of accompanying drawing to ornament of the present invention and clock and watch.

The 1st embodiment of ornament of the present invention at first is described, and the preferred implementation of manufacture method.

Fig. 1 is the profile that expression the present invention decorates position 1 embodiment.Fig. 2 is an expression ornament manufacture method shown in Figure 1 profile preferred embodiment.

As shown in Figure 1, the ornament 1A of present embodiment has base material the 2, the 1st tunicle 3 and the 2nd tunicle 4.

[base material]

Base material (metal base) 2 part of near surface at least mainly is to be made of Ti and/or stainless steel.Mainly the material that is made of Ti for example has Ti (simple substance Ti) and Ti alloy etc.In addition for stainless steel, it is that alloy and Fe-Cr-Ni are alloy etc. that Fe-Cr is arranged, more specifically, SUS405, SUS430, SUS434, SUS444, SUS429, SUS430F etc. are arranged, and SUS304, SUS303, SUS316, SUS316L, SUS316J1, SUS316J1L etc.It should be noted that, as the material that can carry out nitrogen treatment or Carburization Treatment, though also can enumerate the material except the above-mentioned material that constitutes by Ti and/or stainless steel, yet, use these materials (mainly being the material that constitutes by Ti and/or stainless steel), be difficult to make the hardness of the ornament that finally obtains enough big.In addition, not using mainly is the material that is made of Ti and/or stainless steel, then is difficult to the aesthetic look (especially clock and watch require its good appearance with ornaments such as exterior trim parts) of the ornament that long-term maintenance finally obtains.

In addition, the composition at each position of base material 2 can have in fact uniformly to be formed, and also can be that each several part is different composition.For example, base material 2 can have base portion and be located at superficial layer on this base portion.If base material 2 is this formations, by selection, can increase the moulding free degree of base material 2, even, also can relatively easily make for the more complicated ornament 1A of shape to the base portion constituent material.Have at base material 2 under the situation of base portion and superficial layer, the thickness of superficial layer (mean value) is not particularly limited, but preferred 0.1 μ m～50 μ m, more preferably 1.0 μ m～10 μ m.If surface layer thickness is the value in the above-mentioned scope, the intensity of base material 2 of then passing through cure process is excellent especially, and can prevent effectively that superficial layer is from the base portion accidental.

Have at base material 2 under the situation of base portion and superficial layer, the constituent material of superficial layer can preferably use foregoing material.In addition, the constituent material of base portion can use for example metal material, nonmetallic materials etc.

Under the situation that base portion is made of metal material, can provide strength characteristics very excellent ornament 1A.

In addition, under the situation that base portion is made of metal material, even the surface roughness of base portion is bigger, the smooth effect when forming superficial layer and aftermentioned the 1st tunicle the 3, the 2nd tunicle 4 etc. also can obtain the less ornament 1A of surface roughness.For example, even omitted machinings such as machining to base surface, polishing processing, also can carry out the minute surface ornamenting, perhaps base portion forms by the MIM method, even it surperficially also can easily form minute surface for drawn grain.Get the ornament of glossiness excellence therefrom.

Under the situation that base portion is made of nonmetallic materials, can provide for example low weight ornament 1A of being convenient to carry and have thick and heavy outward appearance.

In addition, under the situation that base portion is made of nonmetallic materials, can form desirable shape with comparalive ease.

In addition, under the situation that base portion is made of nonmetallic materials, can also obtain the effect of shield electromagnetic interference.

As basal metal material, for example can enumerate various metals such as Fe, Cu, Zn, Ni, Ti, Mg, Cr, Mn, Mo, Nb, Al, V, Zr, Sn, Au, Pd, Pt, Ag, and contain alloy of at least a metal in these metals etc.Wherein preferred especially Cu, Zn, Ni, Ti, Al or contain the wherein alloy of at least a metal.By forming base portion by above-mentioned material, the adaptation that can make base portion and superficial layer is excellent especially, and the base portion processability is improved, and has further increased the moulding free degree of base material 2 integral body.

In addition, as basal nonmetallic materials, can enumerate pottery, plastics (particularly heat-resistant plastic), stone material and timber etc.

As pottery, for example can enumerate Al ₂O ₃, SiO ₂, TiO ₂, Ti ₂O ₃, ZrO ₂, Y ₂O ₃, barium titanate, strontium titanates etc. oxide ceramics; AlN, Si ₃N ₄, SiN, TiN, BN, ZrN, HfN, VN, TaN, NbN, CrN, Cr ₂The nitride ceramics of N etc.; Graphite, SiC, ZrC, Al ₄C ₃, CaC ₂, WC, TiC, HfC, VC, carbide ceramics such as TaC, NbC; ZrB ₂, boride ceramics such as MoB, perhaps two or more composite ceramics that combines arbitrarily wherein.

Under the basal situation of above-mentioned pottery, can obtain the very excellent ornament 1A of intensity and hardness.

In addition, basal plastic material can be various thermoplastic resins, various thermosetting resins, for example, polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer polyolefin such as (EVA), cyclic polyolefin, improved polyalkene, polyvinyl chloride, Vingon, polystyrene, polyamide (example: nylon 6, nylon 46, nylon 66, NYLON610, nylon 612, nylon 11, nylon 12, nylon 6-12, nylon 6-66), polyimides, polyamidoimide, Merlon (PC), poly--(4-methylpent-1-alkene), ionomer, acrylic resin, polymethyl methacrylate, acrylonitrile-butadiene-styrene copolymer (ABS resin), acrylonitritrile-styrene resin (AS resin), BS, polyformaldehyde, polyvinyl alcohol (PVA), ethylene-vinyl alcohol copolymer (EVOH), PET (PET), polybutylene terephthalate (PBT), poly terephthalic acid hexamethylene diester polyester such as (PCT), polyethers, polyether-ketone (PEK), polyether-ether-ketone (PEEK), PEI, polyacetals (POM), polyphenylene oxide, Noryl, polysulfones, polyether sulfone, polyphenylene sulfide, polyarylate, aromatic polyester (liquid crystal polymer), polytetrafluoroethylene (PTFE), Kynoar, other fluorine resins, phenylethylene, TPO, polyvinyl chloride, polyurethanes, polyesters, polyamide-based, polybutadiene, the using trans-polyisoprene class, contain fluororubber, various thermoplastic elastomer (TPE)s such as haloflex class, epoxy resin, phenolic resins, Lauxite, melmac, unsaturated polyester (UP), silicones, the polyurethanes resin, Parylene, poly-monochloro paraxylene, polydichloro-p-xylene, poly-single fluorine paraxylene, Parylene resins such as poly-single ethyl paraxylene etc.In addition, can enumerate copolymer based on these, mixture, polyblend etc., the combination (for example, as hybrid resin, polyblend, laminate etc.) more than a kind or 2 kinds in them can be used.

In addition, shape, the size of base material 2 are not particularly limited, normally according to the shape of ornament 1A, size and decide.

[the 1st tunicle]

On the surface of base material 2, be provided with the 1st tunicle 3.The 1st tunicle 3 mainly is made of TiCN.In addition, C content in the 1st tunicle 3 and N content sum are 5 weight %～30 weight %.

Owing to have the 1st such tunicle 3,, be difficult for producing and scratch or the vestige of collision etc. so can make hardness (be provided with the hardness of face of a side of the 1st tunicle the 3, the 2nd tunicle 4, the down with) excellence of ornament 1A integral body.In addition, owing to have the 1st such tunicle 3, even the thickness of aftermentioned the 2nd tunicle 4 is less, ornament 1A integral body also can obtain graceful outward appearance.Promptly, under the less situation of the thickness of aftermentioned the 2nd tunicle 4, the tone of the 1st tunicle 3 becomes big to the aesthetic look influence of ornament 1A, yet because tone (colourity) comparing class of the tone (colourity) of described TiCN (the 1st tunicle 3) and the 2nd tunicle 4 is like (difference is little), even if so in this case, also can obtain the aesthetic look of ornament 1A integral body.In addition, at ornament 1A and under the situation that the 2nd tunicle 4 weares and teares, comes off, also can make minimum degree is reduced in the harmful effect to the aesthetic look of ornament 1A through long-term the use.Relative therewith, under the situation of the 1st tunicle that ornament not is not made of TiCN, then can not make the hardness of ornament integral body enough big, consequently easily produce and scratch or the vestige of collision.In addition, under the situation of ornament less than the 1st tunicle that constitutes by TiCN, then base material etc. becomes big to the appearance effects effect of ornament, and there is the situation of greatly damaging the ornament aesthetic look sometimes in the combination according to the composition material of the composition material of base material and the 2nd tunicle.In addition, if the not enough described lower limit of C content in the 1st tunicle and N content sum, then the hardness of ornament integral body is big inadequately, easily produces the vestige of scuffing or collision.In addition, if C content and N content sum in the 1st tunicle be above described higher limit, according to the thickness of the 1st tunicle etc., the internal stress of this tunicle is excessive, easily cracks, thereby the reliability of ornament is greatly reduced.In addition, if C content in the 1st tunicle and N content sum surpass described higher limit, then tone (colourity) difference of the 1st tunicle and the 2nd tunicle is bigger, can influence the aesthetic look of ornament integral body.

As mentioned above, the C content (X in the 1st tunicle 3 _1C) and N content (X _1N) both sum (X ₁) be 5 weight %～30 weight %, and preferred 10 weight %～28 weight %, more preferably 15 weight %～25 weight %.Like this, in the present invention, C content in preferred the 1st tunicle and N content sum are smaller value.So then described effect is more obvious.

In addition, the C content (X in the 1st tunicle 3 _1C) preferred 3 weight %～12 weight %, more preferably 5 weight %～9 weight %.If the value of the C content in the 1st tunicle 3 is in described scope, then ornament 1A has sufficiently high hardness, and the tone of the 1st tunicle 3 (colourity) be the best, thereby makes the effect of the invention described above be able to bring into play more significantly.Relative therewith, if the C in the 1st tunicle 3 contains the described lower limit of quantity not sufficient, then ornament 1A may be difficult to reach sufficiently high hardness owing to the N content in the 1st tunicle 3 etc.In addition, if the C content in the 1st tunicle 3 surpasses described higher limit, then the aesthetic look of ornament 1A may be adversely affected because of the tone overrich (black excessively) of the 1st tunicle 3 and the thickness of the 2nd tunicle 4 etc.

In addition, the N content (X in the 1st tunicle 3 _1N) be preferably 2 weight %～18 weight %, more preferably 8 weight %～16 weight %.If the value of the N content in the 1st tunicle 3 is in described scope, then ornament 1A has sufficiently high hardness, and the tone of the 1st tunicle 3 (colourity) be the best, thereby makes the effect of the invention described above be able to bring into play more significantly.Relative therewith, if the N in the 1st tunicle 3 contains the described lower limit of quantity not sufficient, then ornament 1A may be difficult to reach sufficiently high hardness owing to the C content in the 1st tunicle 3 etc.In addition, if the N content in the 1st tunicle 3 surpasses described higher limit, then the aesthetic look of ornament 1A may be adversely affected because of the tone overrich (strong excessively gold) of the 1st tunicle 3 and the thickness of the 2nd tunicle 4 etc.

In addition, the C content X in preferred the 1st tunicle 3 _1C(weight %) N content X in the 1st tunicle 3 _1N(weight %) is little.The tone that has so just effectively prevented the 1st tunicle 3 is black excessively, and result's (even particularly under less situation of the thickness of the 2nd tunicle 4) makes ornament 1A have very graceful outward appearance.

In addition, the C content X in preferred the 1st tunicle 3 _1CN content X in (weight %) and the 1st tunicle 3 _1N(weight %) satisfies 1≤X _1N-X _1C≤ 10 relation more preferably satisfies 2≤X _1N-X _1C≤ 9 relation, further preferred satisfied 3≤X _1N-X _1C≤ 8 relation.By satisfying such relation, can prevent effectively that the tone of the 1st tunicle 3 is black excessively, and can make the hardness of ornament 1A enough big, thereby can keep graceful outward appearance for a long time.

In addition, as mentioned above, in the present invention, the 1st tunicle mainly is made of TiCN.Simultaneously, TiC and TiN are the same with TiCN also is hard material.Yet,, can not receive effect of the present invention if constitute the 1st tunicle by TiC or TiN.That is, if constitute the 1st tunicle by TiC, then the tone of the 1st tunicle is black excessively, has greatly damaged the aesthetic look of ornament integral body.In addition, if reduce C content in the 1st tunicle (TiC tunicle) in order to prevent this problem, then can make ornament integral hardness deficiency, ornament is easy to generate and scratches or the vestige of collision.Similarly, if constitute the 1st tunicle by TiN, then the tone of the 1st tunicle presented strong gold, had greatly damaged the aesthetic look of ornament integral body.In addition, if reduce N content in the 1st tunicle (TiN tunicle) in order to prevent this problem, then can make ornament integral hardness deficiency, ornament is easy to generate and scratches or the vestige of collision.

In addition, constitute by aforesaid TiCN (C content and the TiCN of N content sum in prescribed limit) by the 1st tunicle 3, ornament 1A in common service condition (for example, temperature :-50 ℃～120 ℃, humidity: have enough stability under 0～100%RH), and by using the specific reagent can be easily and remove the 1st tunicle 3 reliably, and can substantial damage not arranged to base material 2.Therefore, under the 1st tunicle 3 of ornament 1 such as tarnishes at situation, can remove the 1st tunicle 3 and form the 1st good tunicle 3 once more.Like this, for ornament of the present invention because can be easily by using specific reagent to peel off tunicle (the 1st tunicle) reliably and form tunicle again, thereby continue to bring into play its characteristic in can be between longer-term.The remover that uses when peeling off the 1st tunicle 3 can for example be enumerated and contain nitric acid (HNO ₃) and sulfuric acid (H ₂SO ₄) solution etc.At remover is under the situation of solution as described above, preferably nitric acid (the HNO in this solution ₃) concentration is 10 volume %～30 volume %, and the preferred sulfuric acid (H in this solution ₂SO ₄) concentration is 10 volume %～30 volume %.Can be easy to ground thus and remove the 1st tunicle 3 reliably within a short period of time, and can substantial damage not arranged base material 2.Relative therewith, if the tunicle or C content and the TiCN tunicle of N content sum outside prescribed limit that are made of TiC or TiN even then use mentioned reagent, also are difficult in fact can not remove tunicle in other words.

Average thickness for the 1st tunicle 3 is not particularly limited, but preferred 1.6 μ m～5 μ m, more preferably 2.0 μ m～4.0 μ m.If the average thickness values of the 1st tunicle 3 in above-mentioned scope, then can make the hardness of the 1st tunicle 3 enough big, and can prevent effectively that its inner stress from becoming big, thereby can make ornament 1A have excellent reliability and durability.Relative therewith, if the average thickness of the 1st tunicle 3 is lower than above-mentioned lower limit, then may be because the C content (X in the 1st tunicle 3 _1C) and N content (X _1N) wait and can not give full play to the function of above-mentioned the 1st tunicle 3.In addition, if the average thickness of the 1st tunicle 3 exceeds described higher limit, then according to the C content (X in the 1st tunicle 3 _1C) and N content (X _1N) wait the internal stress that shows the 1st tunicle 3 to become big tendency.

In addition, in the 1st tunicle 3, the value of C content and N content sum (perhaps, the value of the value of C content, N content) also can have a plurality of zones that differ from one another.For example, the 1st tunicle 3, the value that can have C content and N content sum is the 1st zone of setting X, and the value of C content and N content sum is the 2nd zone of the big setting X ' of more above-mentioned X.For example, by the 1st zone more is close to base material 2 one side settings than the 2nd zone, thereby prevent that more effectively the 1st tunicle 3 internal stress from becoming big, can make the hardness of the 1st tunicle 3 bigger simultaneously, the adaptation that makes the 1st tunicle 3 and base material 2 is excellence very.Thereby can make ornament 1A in the longer time, keep stable and graceful outward appearance.In addition, being provided with under the 2nd situation of zone, can receive following effect than more close base material 2 one sides in the 1st zone.Because have the 2nd bigger zone of C content and N content sum,, can reduce simultaneously and have of the influence of more dark-toned the 2nd zone ornament 1A aesthetic look so the hardness (hardness of ornament 1A integral body) that can make the 1st tunicle 3 integral body is very excellent.That is to say, because the 1st zone is the 2nd zone more close the 2nd tunicle 4 one sides (ornament outer surface one side) frequently, so than the 2nd zone, the outward appearance of ornament 1A is more vulnerable to the influence of the 1st regional tone, so can make the hardness of the 1st tunicle 3 integral body very excellent, can make the aesthetic look of ornament 1A integral body excellent especially simultaneously.Thereby can make ornament 1A in the longer time, keep stable and graceful outward appearance.

In addition, have (situation that for example has above-mentioned the 1st zone and the 2nd zone) when forming different a plurality of zones at the 1st tunicle 3, the 1st tunicle 3 can constitute has the different laminated body of forming of multilayer, also can be that composition is along its thickness direction tilt variation.

[the 2nd tunicle]

On the surface of the 1st tunicle 3 (with towards the opposite face of the face of base material 2), be provided with the 2nd tunicle 4.

The 2nd tunicle 4 mainly is made of M (one or more elements that the M representative is selected from Ti, Pt, Pd and In), perhaps mainly is made of TiCN (comparing C content and the less TiCN of N content sum with the TiCN that constitutes above-mentioned the 1st tunicle 3).Here " mainly " is meant content maximum in whole constituent materials (constituent) of the 2nd tunicle 4, be preferably in whole constituent materials (constituent) 50 weight % or more than the 50 weight %, more preferably contain 90 weight % or more than the 90 weight %, further preferably contain 99 weight % or more than the 99 weight %.

Owing to have the 2nd such tunicle 4, the aesthetic look of ornament 1A integral body is excellent especially, and particularly ornament 1A becomes the product of the white or silvery white tone with feeling of high class.In addition, though the tone of the tone of described the 1st tunicle 3 and the 2nd tunicle 4 is more approaching, if there is not the 2nd tunicle 4, then the aesthetic appearance of ornament 1A integral body is just insufficient.Particularly, if there is not the 2nd tunicle 4, then ornament 1A lacks feeling of high class.

Average thickness for the 2nd tunicle 4 is not particularly limited, and is preferably 0.15 μ m～0.5 μ m, more preferably 0.15 μ m～0.3 μ m.If the average thickness values of the 2nd tunicle 4 in above-mentioned scope, then can make the aesthetic look of ornament 1A integral body excellent especially, can make the hardness of ornament 1A integral body very big simultaneously.Like this, ornament 1A just can keep stable and graceful outward appearance in the longer time.Relative therewith, if the average thickness of the 2nd tunicle 4 is lower than above-mentioned lower limit, then may since the composition (for example C content, N content) of the 1st tunicle 3 etc. make to be difficult to make the aesthetic look of ornament 1A excellent especially.In addition, if the average thickness of the 2nd tunicle 4 exceeds above-mentioned higher limit, then be difficult to give full play to because of having the effect that described the 1st tunicle is produced, and show the tendency of ornament 1A hardness reduction.

In addition, the 2nd tunicle 4 also can constitute with both materials of TiCN (comparing C content and the less TiCN of N content sum with the TiCN that constitutes above-mentioned the 1st tunicle 3) by comprising described M.

In addition, the 2nd tunicle 4 also can have forms different a plurality of zones, for example has the 1st zone of mainly being made up of M, and the 2nd zone of mainly being made up of TiCN (comparing C content and the less TiCN of N content sum than the TiCN that constitutes above-mentioned the 1st tunicle 3).In addition, the 2nd tunicle 4 can be formed a plurality of layers different laminated body and constitutes by having, and also can be to form along its thickness direction tilt variation.

The situation that＜the 2 tunicle mainly is made of TiCN 〉

Under the situation that the 2nd tunicle 4 mainly is made of TiCN, then can make the hardness of ornament 1A integral body excellent more, thereby ornament 1A can keep stablizing and graceful outward appearance in the longer time.

Under the situation that the 2nd tunicle 4 mainly is made of TiCN, preferably meet the following conditions.

C content in the 2nd tunicle 4 and N content sum (X ₂) than C content in the 1st tunicle 3 and N content sum (X ₁) little.At this moment, the C content (X in the 2nd tunicle 4 _2C) and N content (X _2N) sum (X ₂) be preferably 2 weight %～10 weight %, more preferably 2 weight %～8 weight %, more preferably 2 weight %～6 weight %.If the C content (X in the 2nd tunicle 4 _2C) and N content (X _2N) sum (X ₂) value in described scope, then ornament 1A becomes and has the product of feeling comparatively senior white or silvery white tone.

In addition, the C content (X in the 2nd tunicle 4 _2C) be preferably 0.5 weight %～4 weight %, more preferably 1 weight %～4 weight %.If the C content value in the 2nd tunicle 4 then can make the hardness of ornament 1A very big in described scope, and can make the tone (colourity) of the 2nd tunicle 4 be the best.

In addition, the N content (X in the 2nd tunicle 4 _2N) be preferably 0.5 weight %～6 weight %, more preferably 1 weight %～5 weight %.If the N content value in the 2nd tunicle 4 then can make the hardness of ornament 1A enough big in described scope, the tone (colourity) that makes the 2nd tunicle 4 simultaneously is for best.

In addition, the C content (X in the 1st tunicle 3 _1C) and N content (X _1N) sum is X ₁C content (X in (weight %), the 2nd tunicle 4 _2C) and N content (X _2N) sum is X ₂When (weight %), preferably satisfy 3≤X ₁-X ₂≤ 28 relation more preferably satisfies 8≤X ₁-X ₂≤ 28 relation, further preferred satisfied 15≤X ₁-X ₂≤ 28 relation.By satisfying such relation, can make the hardness of ornament 1A integral body better, make the adaptation of the 1st tunicle 3 and the 2nd tunicle 4 better simultaneously.Thereby make ornament 1A in the longer time, can keep stable and graceful outward appearance.

[ornament]

Ornament 1A as described above can be any article so long as possess ornamental article.For example, it is indoor to be applied to stuff etc., outdoor appliances, Jewelry Accessories, clock and watch housing (shell, bottom, shell and the incorporate housing of bottom etc.), watchband (watchband fibula, the unit of loading and unloading watchband etc.), letter disk, indicator, table circle (for example, rotation table circle), table is (for example screw fastening compact form table etc.), button, cloche, the glass outer rim, the letter disk circle, match plate, clock and watch such as liner extraneous adornment part, the base plate of movement, gear, the train support member, clock and watch such as pendulum are with interior dress part, glasses (for example spectacle-frame), tie clip, sleeve button, ring, necklace, bracelet, ankletbangle, pin, pendant, earrings, ornaments such as ear nail, lighter or its housing, automobile steering wheel, the sports goods of golf club etc., label, instrument board, trophy, other contain the various machine parts of shell etc., various containers etc.Wherein, preferred especially clock and watch extraneous adornment part.When clock and watch had graceful outward appearance with the requirement of extraneous adornment part as ornament, requirement had the sense of touch of durability, corrosion resistance, marresistance, mar proof and excellence etc. as utility.Can satisfy these necessary conditions simultaneously according to the present invention.In addition, " clock and watch extraneous adornment part " in this specification is appreciable any article from the outside, and is not limited to be exposed at the article of clock and watch outside, also can be the article of interior plant clock and watch inside.

In addition, recording Vickers hardness number HV on the face that is provided with the 2nd tunicle 4 one sides of preferred ornament 1A under the load of 10gf is 600～1000.The outward appearance that can keep the ornament grace thus for a long time.

The following describes the manufacture method of above-mentioned ornament 1A.

Fig. 2 is the profile of the expression ornament manufacture method specific embodiment shown in Figure 1.

As shown in Figure 2, the manufacture method of present embodiment ornament comprises following operation: (2a) forms the 1st operation (2b) of the 1st tunicle 3 at least a portion on base material 2 surfaces; And the 2nd operation (2c) that at least a portion on the 1st tunicle 3 surfaces, forms the 2nd tunicle 4.

[base material]

As base material 2, can use above-mentioned material.

In addition, base material 2 moulding by any method obtains, and for example can enumerate following method: punch process, machining, forging processing, casting processing, powder metallurgy sintered, metal powder injection molding (MIM), lost-wax process etc.

In addition, when base material 2 has foregoing base portion and superficial layer, can make base material 2 by following method.That is, obtain base material 2 by on the base portion of method manufacturing as mentioned above, forming superficial layer.As the method that forms superficial layer, for example can enumerate coating process such as dip-coating, brushing, spraying, electrostatic spraying, electro-deposition coating; Wet type plating methods such as plating, immersion plating, physics plating; Chemical vapor deposition methods (CVD) such as hot CVD, plasma CVD, laser CVD; Dry type plating methods such as vacuum evaporation, sputter, ion plating; Thermal spray etc.

In addition, also carry out mirror finish, texture processing, calendering processing for the surface of base material 2.The lustrous surface effect of the ornament 1A that obtains thus has changeability, thereby has further improved the ornamental of ornament 1A.Mirror finish for example can adopt well-known finishing method to carry out, for example polishing wheel (skin cloth) polishing, tumbling and other mechanical polishing methods etc.

In addition, carried out the ornament 1A that the base material 2 of such Surface Machining obtains by use, the ornament 1A that obtain than directly implementing Surface Machining for the 1st tunicle the 3, the 2nd tunicle 4 have suppressed too dazzling etc., and outward appearance is very graceful.In addition, as previously mentioned, the 1st tunicle 3 is made of hard material TiCN, therefore when the 3rd tunicle is directly implemented Surface Machining, is easy to generate on this surface and collapses defectives such as broken, and then can have a strong impact on the yield rate of ornament 1A.But, if, then can avoid these problems effectively by base material 2 is carried out surface treatment.And,, base material 2 is carried out surface treatment can easily carry out at the processing conditions of gentleness than the 1st tunicle 3 is carried out Surface Machining.In addition, because the 2nd tunicle 4 general thickness are less, thereby, then might excessively reduce because of the thickness that makes the 2nd tunicle 4 if after the 2nd tunicle 4 forms, carry out above-mentioned Surface Machining, perhaps may cause the 1st tunicle to expose, greatly damage the aesthetic look of ornament 1A.

[the 1st operation (the 1st tunicle forms operation)]

Form the 1st tunicle 3 (2b) that constitutes by TiCN on base material 2 surfaces.

There is no particular limitation for the formation method of the 1st tunicle 3, can be coating process such as spin coating, dip-coating, brushing, spraying, electrostatic spraying, electro-deposition coating; Wet type plating methods such as plating, immersion plating, physics plating; Chemical vapor deposition methods (CVD) such as hot CVD, plasma CVD, laser CVD; Dry type plating methods (gas phase becomes embrane method) such as vacuum evaporation, sputter, ion plating; Thermal spray etc., preferred dry plating method (gas phase becomes embrane method).The formation method of the 1st tunicle 3 adopts dry type plating method (gas phase becomes embrane method), then can form reliably thickness evenly neat and with the 1st very excellent tunicle 3 of the adaptation of base material 2.Like this, the ornament 1A that finally obtains not only has graceful outward appearance, has good durability simultaneously.In addition, when the formation method of the 1st tunicle 3 adopts dry type plating method (gas phase becomes embrane method), even the thinner thickness of formed the 1st tunicle 3 also can make the degree of thickness inequality as far as possible little.Therefore help improving the reliability of ornament 1A.In addition, when the formation method of the 1st tunicle 3 adopts dry type plating method (gas phase becomes embrane method), can control C content and N content in the 1st tunicle 3 effectively.

In addition, in aforesaid dry type plating method (gas phase becomes embrane method), special preferred ion plating.When the formation method of the 1st tunicle 3 adopted ion plating, above-mentioned effect was more obvious.That is, when the formation method of the 1st tunicle 3 adopts ion plating, can form reliably thickness evenly neat and with the 1st very excellent tunicle 3 of the adaptation of base material 2.Like this, the ornament 1A that finally obtains not only has graceful outward appearance, has good durability simultaneously.In addition, when the formation method of the 1st tunicle 3 adopts ion plating, even the thinner thickness of formed the 1st tunicle 3 also can make the degree of thickness inequality fully little.In addition, when the formation method of the 1st tunicle 3 adopts ion plating, can control C content and N content in the 1st tunicle 3 effectively.

In addition, using above-mentioned dry type plating method, for example is target with Ti, by in the atmosphere gas that contains C (carbon) and N (nitrogen), handling, and can be easily and form the 1st tunicle 3 reliably.This atmosphere gas can adopt nitrogen (N ₂Gas) and the mist of hydrocarbon gas such as acetylene.Like this, by its proportioning of suitable adjustment, can regulate the composition (C, N content) of formed the 1st tunicle 3.

In addition, in atmosphere gas, also can contain inert gases such as argon gas.Thus, can easily and reliably C content in the 1st tunicle 3 and N content be controlled at low scope.In addition, in atmosphere gas, also can contain oxygen (O ₂).Thus, be easy to form reliably have oxydant the 1st tunicle 3 of (TiCNO).

[the 2nd operation (the 2nd tunicle forms operation)]

Below, on the 1st tunicle 3 surfaces that form as mentioned above, form the 2nd tunicle 4 (2c).

There is no particular limitation for the formation method of the 2nd tunicle 4, can be coating process such as spin coating, dip-coating, brushing, spraying, electrostatic spraying, electro-deposition coating; Wet type plating methods such as plating, immersion plating, physics plating; Chemical vapor deposition methods (CVD) such as hot CVD, plasma CVD, laser CVD; Dry type plating methods (gas phase becomes embrane method) such as vacuum evaporation, sputter, ion plating; Thermal spray etc., preferred dry plating method (gas phase becomes embrane method).When the formation method of the 2nd tunicle 4 adopts dry type plating method (gas phase becomes embrane method), can form reliably thickness evenly neat and with the 2nd very excellent tunicle 4 of the adaptation of the 1st tunicle 3.Like this, the ornament 1A that finally obtains not only has graceful outward appearance, has good durability simultaneously.In addition, when the formation method of the 2nd tunicle 4 adopts dry type plating method (gas phase becomes embrane method), even the thinner thickness of formed the 2nd tunicle 4 also can make the degree of thickness inequality fully little.Therefore help improving the reliability of ornament 1A.In addition, mainly contain at the 2nd tunicle 4 under the situation of TiCN formation,, can control C content and N content in the 2nd tunicle 4 effectively by adopting the formation method of dry type plating method (gas phase becomes embrane method) as the 2nd tunicle 4.

In addition, in aforesaid dry type plating method (gas phase becomes embrane method), special preferred ion plating.When the formation method of the 2nd tunicle 4 adopted ion plating, above-mentioned effect was more obvious.That is, the formation method of the 2nd tunicle 4 adopts ion plating, then can form evenly neat and 2nd tunicle 4 very good with the adaptation of the 1st tunicle 3 of thickness reliably.Like this, the ornament 1A that finally obtains not only has graceful outward appearance, has good durability simultaneously.In addition, when the formation method of the 2nd tunicle 4 adopts ion plating, even the thinner thickness of formed the 2nd tunicle 4 also can make the degree of thickness inequality fully little.Therefore help improving the reliability of ornament 1A.In addition, mainly contain at the 2nd tunicle 4 under the situation of TiCN formation, adopt the formation method of dry type plating method (gas phase becomes embrane method), can control C content and N content in the 2nd tunicle 4 more effectively as the 2nd tunicle 4.

In addition, when adopting the dry type plating method to carry out above-mentioned the 1st operation, composition by (in the chamber) atmosphere gas in the kind or gas phase film formation device that change target (for example proportioning of inert gas such as Ar gas and nitrogen and hydrocarbon gas), can be in same device continuously (from install in taking-up base material 2) carry out the 1st operation and the 2nd operation.Obtain the good to each other adaptation of base material the 2, the 1st tunicle the 3, the 2nd tunicle 4 therefrom, improved the production efficiency of ornament 1A simultaneously.

The following describes the 2nd embodiment of ornament of the present invention and the preferred implementation of manufacture method thereof.

Fig. 3 is the profile that expression the present invention decorates position 2 embodiments.Fig. 4 is the profile of the preferred implementation of expression ornament manufacture method shown in Figure 3.

Below, with regard to the ornament and the manufacture method thereof of the 2nd embodiment, be that the center describes with difference, and omitted the explanation of identical content with above-mentioned embodiment.

As shown in Figure 3, the ornament 1B of present embodiment has base material 2, basalis the 5, the 1st tunicle 3 and the 2nd tunicle 4; Described basalis 5 is arranged on base material 2 surfaces, and described the 1st tunicle is arranged on basalis 5 surfaces, and described the 2nd tunicle 4 is arranged on the 1st tunicle 3 surfaces.That is, except having between base material 2 and the 1st tunicle 3 basalis 5, ornament 1B is the same with above-mentioned ornament 1A.Therefore, below basalis 5 is described.

[basalis]

Basalis 5 can be the layer with following any function, for example improves adaptation between base material 2 and the 1st tunicle 3 (adaptation improves the function of layer), repairs the damage (levelling blanket function) of base material 2, the external shock (cushion function) that the resulting ornament of mitigation is subjected to etc. by leveling (correct grinding).

As the constituent material of basalis 5, can enumerate Ti, Zr, Hf, V, Nb, Ta, Cr, Al or contain the wherein metal materials such as alloy of at least a metal, wherein preferred Ti.If basalis 5 mainly is made of Ti, then can further improve the adaptation of base material 2 and the 1st tunicle 3, make the reliability of ornament 1B and durability very excellent.In addition, when basalis 5 mainly is made of Ti, can gives full play to it more and make levelling blanket and the function that relaxes base material 2 concave-convex surfaces.In addition, when basalis 5 mainly was made of Ti, in resulting ornament 1B, basalis 5 can further be given full play to it and make cushion and the function that relaxes the external shock that is subjected to, thereby avoided ornament 1B to produce the collision indenture very effectively.

Average thickness for basalis 5 is not particularly limited, and is preferably 0.1 μ m～2.0 μ m, more preferably 0.5 μ m～1.0 μ m.If the one-tenth-value thickness 1/10 of basalis 5 in described scope, then can effectively avoid basalis 5 internal stress to become big, and brings into play basalis 5 aforesaid functions more fully.

Manufacture method to above-mentioned ornament 1B describes below.

Fig. 4 is the profile of the preferred implementation of expression ornament manufacture method shown in Figure 3.

As shown in Figure 4, the manufacture method of present embodiment ornament has following operation, goes up the operation (4b) that forms basalis 5, is forming the 1st operation (4c) of the 1st tunicle 3 at least a portion on basalis 5 surfaces, forms the 2nd operation (4d) of the 2nd tunicle 4 at least a portion on the 1st tunicle 3 surfaces at least a portion (4a) on base material 2 surfaces.That is,, same with above-mentioned embodiment except before forming the 1st tunicle 3, forming the basalis 5.

[basalis formation operation]

In the present embodiment, on base material 2 surfaces, form basalis 5 (4b).

Formation method for basalis 5 does not limit especially, can be coating process such as spin coating, dip-coating, brushing, spraying, electrostatic spraying, electro-deposition coating; Wet type plating methods such as plating, immersion plating, physics plating; Chemical vapor deposition methods (CVD) such as hot CVD, plasma CVD, laser CVD; Dry type plating methods (gas phase becomes embrane method) such as vacuum evaporation, sputter, ion plating; Thermal spray etc., preferred dry plating method (gas phase becomes embrane method).The formation method of basalis 5 adopts dry type plating method (gas phase becomes embrane method), then can form the evenly neat and basalis 5 very good with the adaptation of base material 2 of thickness reliably.Like this, the ornament 1B that finally obtains not only has graceful outward appearance, has good durability simultaneously.In addition, when the formation method of basalis 5 adopts dry type plating method (gas phase becomes embrane method), even the thinner thickness of formed basalis 5 also can make the degree of thickness inequality fully little.Therefore help improving the reliability of ornament 1B.

In addition, when adopting dry type plating method (gas phase becomes embrane method) to carry out above-mentioned the 1st operation (and the 2nd operation), composition by (in the chamber) atmosphere gas in the kind or gas phase film formation device that change target (for example proportioning of inert gas such as Ar gas and nitrogen and hydrocarbon gas) can be in same device carry out basalis formation operation and the 1st operation (and the 2nd operation) continuously (from install in taking-up base material 2).Obtain the good to each other adaptation of base material 2, basalis the 5, the 1st tunicle 3 (, the 2nd tunicle 4) therefrom, improved the production efficiency of ornament 1B simultaneously.In addition, particularly under the situation that basalis 5 mainly is made of Ti, use same target, by changing the composition of (in the chamber) atmosphere gas in the gas phase film formation device, can be well continuously (constantly) carry out the formation of basalis 5 and the 1st tunicle 3 (and the 2nd tunicle 4).

The following describes clock and watch of the present invention, it has the aforesaid ornament of the present invention.

Fig. 5 is the part sectioned view of the preferred implementation of expression clock and watch of the present invention (portable timekeeper).

As shown in Figure 5, the wrist-watch of present embodiment (portable timekeeper) 10 has housing (watchcase) 22, bottom 23, table circle (shell limit) 24 and glass plate 25.In addition, not shown parts (as letter disk, indicator etc.) are housed in housing 22.

Arbor pipe 26 is embedded into and is fixed in the housing 22, be inserted with the axial region of showing 27 271 in this arbor pipe 26, and this axial region 271 is rotatable.

Housing 22 and table circle 24 are fixing by plastic gasket 28, and table circle 24 and glass plate 25 are fixing by plastic gasket 29.

In addition, relative housing 22 chimeric (or screwing togather) bottom 23 inserts the rubber packing (bottom liner) 40 of the ring-type of compressive states at its junction surface (sealing) 50.By this structure, sealing 50 sealings are the close state of liquid, thereby have water-proof function.

Be formed with groove 272, chimeric rubber packings (showing) 30 that ring-type is arranged in this groove 272 at table on the middle part periphery of 27 axial region 271 liner.Rubber packing 30 close attachment and are in compressive state between the inner face of this inner peripheral surface and groove 272 on the inner peripheral surface of arbor pipe 26.By such structure, make table 27 with arbor pipe 26 between seal to be the close state of liquid, thereby have water-proof function.In addition, 27 o'clock, rubber packing 30 was with axial region 271 rotations at the rotation table, and close attachment is in the inner peripheral surface of arbor pipe 26 and in circumferential slip.

In the wrist-watch 10 of the present invention, at least a 27, in the ornaments (particularly clock and watch exterior trim part) such as bottom 23, watchband is made of the aforesaid ornament of the present invention for table circle 24, shell 22, table.

More than preferred implementation of the present invention is illustrated, but the present invention is not limited thereto.

For example, for the manufacture method of ornament of the present invention, can increase to and realize the required operation of multiple purpose.Such as, between the 1st operation and the 2nd operation, intermediate treatment such as can clean.Or to base material cut, grind cut, preliminary treatment such as polishing, honing.

In addition; corrosion resistance, weather proofing, water proofing property, grease proofness, marresistance, mar proof, discoloration-resistant etc. can be at least a portion of surface of decoration, given, and the coating (protective layer) of effects such as raising is antirust, antifouling, antifog, anti-scratch (wiping) wound can be formed.Such coating also can be the coating of removing when ornament uses.

In addition, in the above-mentioned embodiment, be illustrated, have one deck intermediate layer at least but also can between the 1st tunicle and the 2nd tunicle, be provided with to the 1st tunicle and the 2nd tunicle mode that is provided with that adjoins each other is installed.Can realize adaptation higher between the 1st tunicle and the 2nd tunicle etc. thus.

Embodiment

The following describes specific embodiments of the invention.

The manufacturing of 1 ornament

(embodiment 1)

Make ornament (watch case (bottom)) by the following method.

At first, use stainless steel (SUS444),, make the base material of (bottom) shape that has watch case, then the part of necessity is cut, polished by casting.

Then, clean base material.As the cleaning of base material, at first be 30 seconds alkali electrolytic degreasing, be 30 seconds alkali steeping degreasing then.Be 10 seconds neutralization, washing in 10 seconds, pure washing in 10 seconds thereafter.

To cleaning the back base material as mentioned above, use ion plating apparatus, as described below, form the 1st tunicle that mainly constitutes by TiCN.

At first the process chamber of preheating ion plating apparatus will be handled indoor exhaust (decompression) simultaneously to 2 * 10 ^-3Pa.Then, the flow of pressing 30ml/ minute and 20ml/ minute respectively feeds nitrogen and acetylene gas, makes the atmosphere air pressure (gross pressure) in the process chamber reach 3.0 * 10 ^-3Pa.Under this state (continue feeding the state of nitrogen and acetylene gas), be target with Ti, and to set ionization voltage be that 50V, ionization electric current are 40A, under such state, carry out 60 minutes gas phase film forming (ion plating) (the 1st operation).Like this, just formed the 1st tunicle of average thickness 1.6 μ m, it mainly is made of TiCN.C content is 10.0 weight % in formed the 1st tunicle, and N content is 15.0 weight %.In addition, the thickness of the 1st tunicle is according to the microscope cross section determination of test method of JIS H 5821 regulation.

Then, use above-mentioned ion plating apparatus, on the surface of the 1st tunicle, form the 2nd tunicle (the 2nd operation) that mainly constitutes by TiCN.The formation of the 2nd tunicle is as described below.

To handle indoor exhaust (decompression) to 2 * 10 ^-3Pa.Then, the flow of pressing 10ml/ minute and 10ml/ minute respectively feeds nitrogen and acetylene gas, makes the atmosphere air pressure (gross pressure) in the process chamber reach 2.6 * 10 ^-3Pa.Under this state (continue feeding the state of nitrogen and acetylene gas), be target with Ti, and to set ionization voltage be that 50V, ionization electric current are 40A, under such state, carry out 10 minutes gas phase film forming (ion plating) (the 2nd operation).Like this, just formed the 2nd tunicle of average thickness 0.3 μ m, it mainly is made of TiCN.C content is 3.0 weight % in formed the 2nd tunicle, and N content is 5.5 weight %.

In addition, the thickness of the 1st tunicle, the 2nd tunicle is according to the microscope section determination of test method of JIS H 5821 regulation.

(embodiment 2～4)

By changing the nitrogen in the 1st operation, the flow of acetylene gas, and the processing time that changes the 1st operation, make average thickness, the C content in the 1st tunicle and the N content of the 1st tunicle reach table 1 indicating value; And, by changing the nitrogen in the 2nd operation, the flow of acetylene gas, and the processing time that changes the 2nd operation, make average thickness, the C content in the 2nd tunicle and the N content of the 2nd tunicle reach table 1 indicating value.Except above-mentioned, operate equally with the foregoing description 1, make ornament (watch case (bottom)).

(embodiment 5)

At first and the foregoing description 1 operate equally, form the 1st tunicle at substrate surface.

Then, use above-mentioned ion plating apparatus, on the surface of the 1st tunicle, form the 2nd tunicle that mainly constitutes by Pt.The formation of the 2nd tunicle is as described below.

The process chamber of preheating ion plating apparatus at first, and will handle indoor exhaust (decompression) to 2 * 10 ^-3Pa.Then, the flow of pressing 100ml/ minute feeds argon gas, makes the atmosphere air pressure in the process chamber reach 5.0 * 10 ^-3Pa.Under this state state of argon gas (continue feed), be target with Pt, and to set ionization voltage be that 30V, ionization electric current are 25A, under such state, carry out 10 minutes gas phase film forming (ion plating) (the 2nd operation).Like this, just formed the 2nd tunicle of average thickness 0.3 μ m, it is made of Pt.

(embodiment 6)

Except passing through to change nitrogen, the acetylene gas flow in the 1st operation, and the processing time that changes the 1st operation, the 2nd operation, the average thickness of average thickness, the C content in the 1st tunicle and the N content and the 2nd tunicle of the 1st tunicle is reached beyond table 1 indicating value, operate equally with the foregoing description 5, make ornament (watch case (bottom)).

(embodiment 7～10)

Composition except the target that uses in the processing time by changing nitrogen in the 1st operation, acetylene gas flow, the 1st operation, the 2nd operation, and the processing time that changes the 2nd operation, make the average thickness of the composition material of average thickness, the C content in the 1st tunicle and N content, the 2nd tunicle of the 1st tunicle and the 2nd tunicle as shown in table 1 beyond, operate equally with the foregoing description 5, make ornament (watch case (bottom)).

(embodiment 11～18)

Except using the material that constitutes by Ti as the base material, operate equally with the foregoing description 3～10, make ornament (watch case (bottom)).

As base material, use the material of making by metal powder injection molding as described below (MIM).

At first prepare to send legal system forth and be equipped with the Ti powder that average grain diameter is 52 μ m by gas.

This Ti powder of 75 volume %, the polyethylene of 8 volume %, the polypropylene of 7 volume %, the material that 10 volume % paraffin are formed are mediated.Kneader is used in the kneading of above-mentioned material.In addition, the material temperature during kneading is 60 ℃.

Then, the kneaded material pulverizing that is about to obtain, sorting and average diameter be the particle of 3mm.Use this particle, carry out metal powder injection molding (MIM), make formed body with watch case shape by injection (mo(u)lding) machine.Contraction when the formed body of this moment has been considered to take off bond processing, sintering makes.Condition of molding during injection moulding is, mold temperature is that 40 ℃, injection pressure are 80kgf/cm ², be that 20 seconds, cool time are 40 seconds inject time.

Below, use debinding furnace that above-mentioned formed body is taken off bond and handle, obtain the degreasing body.This takes off bond and handles following carrying out.Promptly 1.0 * 10 ^-1In the argon atmosphere of Pa, handled through one hour, be warming up to 400 ℃ with 10 ℃/hour speed then at 80 ℃.Example weight during by mensuration heat treatment is not handled terminal point in the moment that reduces as taking off bond with weight.

Then, use sintering furnace that the as above degreasing body of gained is carried out sintering, obtain base material.This sintering is 1.3 * 10 ^-3Pa～1.3 * 10 ^-4In the argon medium of Pa, with 900 ℃～1000 ℃ heat treatments of carrying out 6 hours.

At base material to obtaining as mentioned above, carry out necessary part cutting, the polishing after, clean this base material.As the cleaning of base material, at first be 30 seconds alkali electrolytic degreasing, then be 30 seconds alkali steeping degreasing, be thereafter 10 seconds neutralization, washing in 10 seconds, pure water cleaning in 10 seconds.

(embodiment 19～26)

Before forming, formation basalis on the substrate surface, operate equally, make ornament (watch case (bottom)) with the foregoing description 3～10 in the 1st tunicle.

The formation of basalis is as described below.

At first, same with the foregoing description 1, will place in the process chamber of ion plating apparatus through the machine material that cleans.

Then, the process chamber of preheating ion plating apparatus, and will handle indoor exhaust (decompression) to 3 * 10 ^-3Pa.

Then, in process chamber, feed Clean-argon gas, carry out 5 minutes cleaning.Cleaning is to be undertaken by the DC voltage that applies 350V.

Then, in process chamber, feed argon gas, apply the DC voltage of 400V and kept 30 minutes～60 minutes.Under such state, be target with Ti, be that 30V, ionization electric current are that 20A, processing time are 20 minutes by setting ionization voltage, form the basalis (basalis forms operation) that constitutes by Ti.Formed basalis average thickness is 0.5 μ m.

(embodiment 27～34)

Except using the material that constitutes by Ti as the base material, operate equally with the foregoing description 19～26, make ornament (watch case (bottom)).

Used base material use with the foregoing description 3 in the identical preparation method, the base material that condition is made of explanation.

(comparative example 1)

Make ornament (watch case (bottom)) by method as follows.

At first, similarly make Ti system base material with the foregoing description 11.

Then, clean this base material.As the cleaning of base material, at first be 30 seconds alkali electrolytic degreasing, then be 30 seconds alkali steeping degreasing, be thereafter 10 seconds neutralization, washing in 10 seconds, pure water cleaning in 10 seconds.

By to carrying out Carburization Treatment, form the carburized layer (TiC layer) that constitutes by TiC through the base material that cleans as mentioned above.

Carburization Treatment is undertaken by plasma carburising processing as described below.

Promptly, in heating furnace, has the process chamber that centers on by heat-barrier materials such as graphite fibres, the heater that constitutes by graphite rod is to heating in the process chamber, process chamber top connects the positive pole of direct current glow discharge, and the item for disposal mounting table links to each other with negative electrode, critical positions in process chamber is provided with the gas main in addition, makes hydrocarbon, nitrogen, argon gas, hydrogen etc. handle an amount of Carburization Treatment device that feeds of gas (carburizing gas and dilution gas).

In addition, at first in the process chamber of Carburization Treatment device, place base material, be decompressed to 1.3Pa in the process chamber.Like this, under the state that reduces pressure in process chamber, by heater, heated substrate is to about 300 ℃.

Then, in process chamber, feed Clean-argon gas, carry out 5 minutes cleaning.Cleaning is to be undertaken by the DC voltage that applies 350V.

Then, by feed propane gas in process chamber, make in process chamber gas composition be almost 100% propane gas, air pressure is 53Pa, and the DC voltage that applies 400V kept 90 minutes～180 minutes, carried out plasma carburising and handled.After this, be pressed into argon gas and nitrogen in process chamber, the cooling base material is to normal temperature.By such Carburization Treatment, form the thick carburized layer of about 15 μ m.

Then, be made like the 2nd tunicle on the carburized layer surface with the foregoing description 6, thereby obtain ornament (watch case (bottom)).

(comparative example 2)

Make ornament (watch case (bottom)) by method as follows.

At first, similarly make Ti system base material with the foregoing description 11.

Then, clean this base material.The cleaning of base material at first is 30 seconds an alkali electrolytic degreasing, then is 30 seconds alkali steeping degreasing, be thereafter 10 seconds neutralization, washing in 10 seconds, 10 seconds pure water clean.

By to carrying out nitrogen treatment, form the nitration case (TiN layer) that constitutes by TiN through the base material that cleans as mentioned above.

Nitrogen treatment is undertaken by ion Plasma Nitriding Treatment as described below.

At first in the process chamber of ion Plasma Nitriding Treatment device, place base material, be decompressed to 1.3 * 10 in the process chamber ^-3Pa.Like this, under the state that in process chamber, reduces pressure, by heater, heated substrate to 300 ℃.

Then, in process chamber, feed hydrogen and ammonia, feed hydrogen partial pressure 1.3 * 10 in the after-processing chamber ^-4Pa, ammonia dividing potential drop 1.2 * 10 ^-4Pa.

Then, apply the 400V DC voltage, kept 8 hours down for 300 ℃ in temperature, and carry out glow discharge, form the thick nitration case of about 15 μ m by nitrogen treatment.

, on nitration case surface with the foregoing description 6 be made like 2nd tunicle, thereby obtain ornament (watch case (bottom)) thereafter.

(comparative example 3)

At first, similarly make stainless steel base material with the foregoing description 1.

To this base material,, form the Ti layer that constitutes by Ti, thereby obtain ornament (watch case (bottom)) by method as follows.

At first,, similarly clean, place then in the process chamber of ion plating apparatus with the foregoing description 1 to above-mentioned base material.

Then, to carrying out preheating in the process chamber of ion plating apparatus, and will handle indoor exhaust (decompression) to 3 * 10 ^-3Pa.

Then, in process chamber, feed Clean-argon gas, carry out 5 minutes cleaning.Cleaning is to be undertaken by the DC voltage that applies 350V.

, to process chamber in feed argon gas, apply the DC voltage of 400V and kept 30 minutes～60 minutes thereafter.Under such state, be target with Ti, be that 30V, ionization electric current are that 20A, processing time are 80 minutes by setting ionization voltage, form the Ti layer that constitutes by Ti.The average thickness of formed Ti layer is 2.5 μ m.

(comparative example 4)

Except being made like the 2nd tunicle with the foregoing description 6 on the Ti laminar surface, obtain ornament (watch case (bottom)) with above-mentioned comparative example 3 the samely.

(comparative example 5)

At first, similarly make stainless steel base material with the foregoing description 1.

To this base material,, form the TiCN layer (the 1st tunicle) that constitutes by TiCN, thereby obtain ornament (watch case (bottom)) by method as follows.

At first,, similarly clean, place then in the process chamber of ion plating apparatus with the foregoing description 1 to above-mentioned base material.

Then, to carrying out preheating in the process chamber of ion plating apparatus, and will handle indoor exhaust (decompression) to 3 * 10 ^-3Pa.

Then, in process chamber, feed Clean-argon gas, carry out 5 minutes cleaning.Cleaning is to be undertaken by the DC voltage that applies 350V.

Handling indoor exhaust (decompression) to 2 * 10 thereafter, ^-3After the Pa, the flow of pressing 90ml/ minute and 20ml/ minute respectively feeds nitrogen and acetylene gas, makes the atmosphere air pressure (gross pressure) in the process chamber reach 5.0 * 10 ^-3Pa.Under this state (continuing to feed the state of nitrogen and acetylene gas), be target with Ti, setting ionization voltage is that 32V, ionization electric current are 16A, under such state, carries out 35 minutes gas phase film forming (ion plating) (the 1st operation).Like this, just formed the TiCN layer of forming by TiCN (the 1st tunicle) of average thickness 0.8 μ m.C content is 25.0 weight % in the formed TiCN layer (the 1st tunicle), and N content is 6.0 weight %.In addition, the thickness of TiCN layer (the 1st tunicle) is according to the microscope cross section determination of test method of JIS H 5821 regulation.

(comparative example 6)

Except being made like the 2nd tunicle with the foregoing description 6 on the TiCN laminar surface, obtain ornament (watch case (bottom)) with above-mentioned comparative example 5 the samely.

(comparative example 7)

Except not formation the 2nd tunicle on the 1st tunicle surface, make ornament (watch case (bottom)) with the foregoing description 4 the samely.

(comparative example 8)

Except do not use nitrogen to carry out making ornament (watch case (bottom)) with the foregoing description 6 the 1st operation the samely.

(comparative example 9)

Except do not use acetylene gas to carry out making ornament (watch case (bottom)) with the foregoing description 6 the 1st operation the samely.

The formation of the ornament of each embodiment and each comparative example is concentrated and is illustrated in table 1, table 2, the table 3.In addition, in table 1～table 3, stainless steel is represented with SUS.In addition, in table 3,, the carburized layer that forms by Carburization Treatment, nitrogen treatment respectively, the correlation values of nitration case in the hurdle of the 1st tunicle, have been provided for comparative example 1,2.In addition, in table 3,, in the hurdle of the 1st tunicle, provided the correlation values of Ti layer for comparative example 3,4.In addition, for each embodiment and each comparative example, the 2nd tunicle is to be 99.9 weight % or to be constituted greater than the constituent material shown in table 1～3 of 99.9 weight % by purity.

Table 1

	Base material	Basalis		The 1st tunicle			The 2nd tunicle
									Constituent material	Constituent material	Average thickness [μ m]	C content [weight %]	N content [weight %]	Average thickness [μ m]	Constituent material	Average thickness [μ m]
	Embodiment 1	????SUS	????-	????-	????10.0	????15.0	????1.6	TiCN (C:3.0 weight %, N:5.5 weight %)									????0.3
Embodiment 2									????SUS	????-	????-	????9.5	????10.0	????3.0	TiCN (C:3.0 weight %, N:5.5 weight %)	????0.5
	Embodiment 3	????SUS	????-	????-	????7.5	????12.0	????4.8	TiCN (C:4.0 weight %, N:4.5 weight %)									????0.3
Embodiment 4									????SUS	????-	????-	????8.3	????14.9	????2.0	TiCN (C:1.0 weight %, N:1.5 weight %)	????0.2
	Embodiment 5	????SUS	????-	????-	????10.0	????15.0	????1.6	????Pt									????0.3
Embodiment 6									????SUS	????-	????-	????9.0	????16.0	????2.0	????Pt	????0.2
	Embodiment 7	????SUS	????-	????-	????6.0	????9.0	????4.5	????Ti									????0.2
Embodiment 8									????SUS	????-	????-	????10.5	????14.5	????2.1	????Ti	????0.2
	Embodiment 9	????SUS	????-	????-	????2.5	????4.5	????5.0	Pd-In (Pd:99.0 weight %, In:1.0 weight %)									????0.4
Embodiment 10									????SUS	????-	????-	????8.5	????13.5	????2.0	Pd-In (Pd:97.0 weight %, In:3.0 weight %)	????0.2
	Embodiment 11	????Ti	????-	????-	????7.5	????12.0	????4.8	TiCN (C:4.0 weight %, N:4.5 weight %)									????0.3
Embodiment 12									????Ti	????-	????-	????8.3	????14.9	????2.0	TiCN (C:1.0 weight %, N:1.5 weight %)	????0.2
	Embodiment 13	????Ti	????-	????-	????10.0	????15.0	????1.6	????Pt									????0.3
Embodiment 14									????Ti	????-	????-	????9.0	????16.0	????2.0	????Pt	????0.2
	Embodiment 15	????Ti	????-	????-	????6.0	????9.0	????4.5	????Ti									????0.2
Embodiment 16									????Ti	????-	????-	????10.5	????14.5	????2.1	????Ti	????0.2
	Embodiment 17	????Ti	????-	????-	????2.5	????4.5	????5.0	Pd-In (Pd:99.0 weight %, In:1.0 weight %)									????0.4
Embodiment 18									????Ti	????-	????-	????8.5	????13.5	????2.0	Pd-In (Pd:97.0 weight %, In:3.0 weight %)	????0.2

Table 2

	Base material	Basalis		The 1st tunicle			The 2nd tunicle
									Constituent material	Constituent material	Average thickness [μ m]	C content [weight %]	N content [weight %]	Average thickness [μ m]	Constituent material	Average thickness [μ m]
	Embodiment 19	????SUS	????Ti	????0.5	????7.5	????12.0	????4.8	TiCN (C:4.0 weight %, N:4.5 weight %)									????0.3
Embodiment 20									????SUS	????Ti	????0.5	????8.3	????14.9	????2.0	TiCN (C:1.0 weight %, N:1.5 weight %)	????0.2
	Embodiment 21	????SUS	????Ti	????0.5	????10.0	????15.0	????1.6	?Pt									????0.3
Embodiment 22									????SUS	????Ti	????0.5	????9.0	????16.0	????2.0	?Pt	????0.2
	Embodiment 23	????SUS	????Ti	????0.5	????6.0	????9.0	????4.5	?Ti									????0.2
Embodiment 24									????SUS	????Ti	????0.5	????10.5	????14.5	????2.1	?Ti	????0.2
	Embodiment 25	????SUS	????Ti	????0.5	????2.5	????4.5	????5.0	Pd-In (Pd:99.0 weight %, In:1.0 weight %)									????0.4
Embodiment 26									????SUS	????Ti	????0.5	????8.5	????13.5	????2.0	Pd-In (Pd:97.0 weight %, In:3.0 weight %)	????0.2
	Embodiment 27	????Ti	????Ti	????0.5	????7.5	????12.0	????4.8	TiCN (C:4.0 weight %, N:4.5 weight %)									????0.3
Embodiment 28									????Ti	????Ti	????0.5	????8.3	????14.9	????2.0	TiCN (C:1.0 weight %, N:1.5 weight %)	????0.2
	Embodiment 29	????Ti	????Ti	????0.5	????10.0	????15.0	????1.6	?Pt									????0.3
Embodiment 30									????Ti	????Ti	????0.5	????9.0	????16.0	????2.0	?Pt	????0.2
	Embodiment 31	????Ti	????Ti	????0.5	????6.0	????9.0	????4.5	?Ti									????0.2
Embodiment 32									????Ti	????Ti	????0.5	????10.5	????14.5	????2.1	?Ti	????0.2
	Embodiment 33	????Ti	????Ti	????0.5	????2.5	????4.5	????5.0	Pd-In (Pd:99.0 weight %, In:1.0 weight %)									????0.4
Embodiment 34									????Ti	????Ti	????0.5	????8.5	????13.5	????2.0	Pd-In (Pd:97.0 weight %, In:3.0 weight %)	????0.2

Table 3

	Base material	Basalis		The 1st tunicle			The 2nd tunicle
									Constituent material	Constituent material	Average thickness [μ m]	C content [weight %]	N content [weight %]	Average thickness [μ m]	Constituent material	Average thickness [μ m]
	Comparative example 1	????Ti	????-	????-	????30	????-	????15 ????(TiC)	????Pt									????0.5
Comparative example 2									????Ti	????-	????-	????-	????25	????15 ????(TiN)	????Pt	????0.5
	Comparative example 3	????SUS	????-	????-	????-	????-	????2.5 ????(Ti)	????-									????-
Comparative example 4									????SUS	????-	????-	????-	????-	????2.5 ????(Ti)	????Pt	????0.2
	Comparative example 5	????SUS	????-	????-	????25.0	????6.0	????0.8	????-									????-
Comparative example 6									????SUS	????-	????-	????25.0	????6.0	????0.8	????Pt	????0.2
	Comparative example 7	????SUS	????-	????-	????8.3	????14.9	????2.0	????-									????-
Comparative example 8									????SUS	????-	????-	????11.1	????-	????2.0 ????(TiC)	????Pt	????0.2
	Comparative example 9	????SUS	????-	????-	????-	????16.7	????2.0 ????(TiN)	????Pt									????0.2

2 ocular estimates

For each ornament of the foregoing description 1～34 and comparative example 1～9 manufacturing, by visual or microscopic examination, its outward appearance can be estimated according to 4 following grade standards.

◎: good appearance

Zero: outward appearance is good

△: outward appearance is bad slightly

*: bad order

3 marresistance evaluations

Each ornament for the foregoing description 1～34 and comparative example 1～9 manufacturing carries out the marresistance evaluation by carrying out test as follows.

(suga test Co., Ltd. makes to use the suga abrasion tester, NUS-ISO-1), in load is under the condition of 400gf, after the face (with the face that exposes the opposite side of substrate surface one side) that each ornament is formed tunicle one side adds up to 200DS (two-pass) wearing and tearing, by each ornament of visualization, its outward appearance is estimated according to 4 following grade standards.In addition, above-mentioned test uses the polished film (lapping film) (aluminium oxide, granularity 30 μ m) of this sharp Eem of Sumitomo (ス リ-エ system) (strain) system to carry out.

◎: can't see scar fully on the tunicle surface

Zero: almost can't see scar on the tunicle surface

△: only see slight scar on the tunicle surface

*: see tangible scar on the tunicle surface

4 crashworthiness traces (being difficult for producing percussion mark) are estimated

Each ornament for the foregoing description 1～34 and comparative example 1～9 manufacturing carries out the evaluation of crashworthiness trace by carrying out test as follows.

Face towards each ornament formation tunicle one side makes stainless steel ball (diameter 1cm) highly fall from 50cm, measures the size (indenture diameter) of surface of decoration indenture, estimates according to following 4 grade standards.

◎: the not enough 1mm of indenture diameter or can not find indenture

Zero: the indenture diameter is 1mm～2mm

△: the indenture diameter is 2mm～3mm

*: the indenture diameter is greater than 3mm

5 use reagent to carry out the formation again with tunicle of removing of tunicle

Ornament to the various embodiments described above and the manufacturing of each comparative example uses reagent to remove tunicle, and under the condition identical with the condition of the corresponding the various embodiments described above of difference and each comparative example, forms tunicle again.The complexity of removing tunicle (the 1st tunicle, the 2nd tunicle) and forming tunicle is once more estimated according to following 4 grade standards.

◎: use the reagent can be easily and carry out removing of tunicle reliably and form again, and the ornament outward appearance of tunicle after forming again is with to use reagent to remove tunicle before identical with tunicle

Zero: use reagent to carry out removing of tunicle and form slightly again with tunicle and to have any problem, but the ornament outward appearance after tunicle forms again is with to use reagent to remove before the tunicle roughly the same.Perhaps, use reagent to be easy to carry out removing of tunicle and form again, but the ornament outward appearance after tunicle forms again is before poor slightly than using reagent to remove tunicle with tunicle

△: use reagent to carry out removing of tunicle and form slightly again with tunicle and to have any problem, and the ornament outward appearance of tunicle after forming again is poor slightly than using reagent to remove before the tunicle

*: use reagent in fact can not carry out removing of tunicle and form again, and/or the ornament outward appearance of tunicle after forming again is than using reagent to remove bright first variation before the tunicle with tunicle

In addition,, adopt following method,, use and contain nitric acid (HNO as reagent in order to remove tunicle ₃): 15 volume %, sulfuric acid (H ₂SO ₄): the aqueous solution of 15 volume %, each ornament of dipping in this aqueous solution.

In addition, for the ornament that can not remove tunicle by mentioned reagent, on probation grind cut, machining process such as grinding removes tunicle.Though consequently removed tunicle, base material caused damage., under same as described above condition, the ornament of removing tunicle carried out tunicle when forming again, be subjected to the influence of base material damage, make the aesthetic feeling of resulting ornament obviously impaired thereafter.

The vickers hardness hv of these results and tunicle together is shown at table 4, table 5.In addition, Vickers hardness is represented is to the measured value of each surface of decoration (face of the 2nd tunicle one side is set) when applying measuring load 10gf.

Table 4

	Vickers hardness	Ocular estimate	Marresistance	The crashworthiness trace	Tunicle forms again
						Embodiment 1	????700	????◎	????○	????○	????◎
Embodiment 2	????900	????○	????◎	????◎	????◎
						Embodiment 3	????1000	????○	????◎	????◎	????◎
Embodiment 4	????800	????◎	????◎	????◎	????◎
						Embodiment 5	????680	????◎	????○	????○	????◎
Embodiment 6	????780	????◎	????◎	????◎	????◎
						Embodiment 7	????950	????○	????◎	????◎	????◎
Embodiment 8	????780	????◎	????◎	????◎	????◎
						Embodiment 9	????940	????○	????◎	????◎	????◎
Embodiment 10	????790	????◎	????◎	????◎	????◎
						Embodiment 11	????980	????○	????◎	????◎	????◎
Embodiment 12	????780	????◎	????◎	????◎	????◎
						Embodiment 13	????660	????◎	????○	????○	????◎
Embodiment 14	????760	????◎	????◎	????◎	????◎
						Embodiment 15	????930	????○	????◎	????◎	????◎
Embodiment 16	????760	????◎	????◎	????◎	????◎
						Embodiment 17	????920	????○	????◎	????◎	????◎
Embodiment 18	????770	????◎	????◎	????◎	????◎
						Embodiment 19	????1000	????○	????◎	????◎	????◎
Embodiment 20	????850	????◎	????◎	????◎	????◎
						Embodiment 21	????730	????◎	????○	????○	????◎
Embodiment 22	????830	????◎	????◎	????◎	????◎

Table 5

	Vickers hardness	Ocular estimate	Marresistance	The crashworthiness trace	Tunicle forms again
						Embodiment 23	????980	????○	????◎	????◎	????◎
Embodiment 24	????810	????◎	????◎	????◎	????◎
						Embodiment 25	????970	????○	????◎	????◎	????◎
Embodiment 26	????820	????◎	????◎	????◎	????◎
						Embodiment 27	????1000	????○	????◎	????◎	????◎
Embodiment 28	????810	????◎	????◎	????◎	????◎
						Embodiment 29	????690	????◎	????○	????○	????◎
Embodiment 30	????790	????◎	????◎	????◎	????◎
						Embodiment 31	????960	????○	????◎	????◎	????◎
Embodiment 32	????790	????◎	????◎	????◎	????◎
						Embodiment 33	????950	????○	????◎	????◎	????◎
Embodiment 34	????800	????◎	????◎	????◎	????◎
						Comparative example 1	????1500	????×	????◎	????◎	????×
Comparative example 2	????1500	????×	????◎	????◎	????×
						Comparative example 3	????350	????◎	????×	????×	????×
Comparative example 4	????340	????◎	????×	????×	????×
						Comparative example 5	????400	????×	????△	????×	????△
Comparative example 6	????390	????◎	????△	????×	????△
						Comparative example 7	????900	????×	????◎	????◎	????◎
Comparative example 8	????950	????×	????◎	????◎	????×
						Comparative example 9	????900	????×	????◎	????◎	????△

Obviously, shown in table 4, table 5, ornament of the present invention all has graceful outward appearance.In addition, ornament of the present invention has higher hardness, and marresistance, crashworthiness trace are good.And,, thereby receive very good effect because the one-tenth-value thickness 1/10 of C, N content value and tunicle (the 1st tunicle, the 2nd tunicle, basalis) in the 1st tunicle is in preferable range.

In addition, ornament of the present invention all has good sense of touch, does not have rough sense.

In addition, in the present invention, the atmosphere gas when suitably selecting ion plating is formed, and is easy to form the tunicle (the 1st tunicle, the 2nd tunicle, basalis) with desirable composition, characteristic.

In addition, ornament of the present invention has good durability, is easy to remove reliably tunicle by using specific reagent, and carries out tunicle well and form.

Relative therewith, in comparative example, then can not receive satisfied effect.The ornament of comparative example 1,2 particularly, the surface roughness when forming carburized layer, nitration case is very big, after this, applies the ornament of the 2nd tunicle (Pt film), and its outward appearance is had a strong impact on.In addition, the ornament of comparative example 3～7, outward appearance is relatively poor, lacks noble sense.Wherein, the comparative example 5,6,8 that the 1st tunicle C content is higher, it is black that its ornament outward appearance shows, and particularly the ornament of comparative example 6,8 has nothing to do with the 2nd tunicle that covers on the 1st tunicle surface, and the color of the 1st tunicle causes harmful effect to the ornament outward appearance.In addition, the ornament of comparative example 3,6,8,9, the evaluation of marresistance, crashworthiness trace is very low.This may be because lower the causing of Vickers hardness of the 1st tunicle (for comparative example 3,4, the Ti layer corresponding with the 1st tunicle).Wherein, the ornament of comparative example 5,6, more irrelevant with C content and N content sum in the 1st tunicle, the reason that the Vickers hardness of Ce Dinging is lower may be that the thickness of the 1st tunicle is less as mentioned above.Therefore, except changing the film formation time of the 1st tunicle, increase outside the thickness of the 1st tunicle, attempt making and above-mentioned comparative example 5, the 6 same ornaments of forming, in film forming procedure,, on the 1st tunicle, produced bigger crackle when the thickness of the 1st tunicle reaches moment of 1.5 μ m.The result is the ornament of making by such method, and its outward appearance is very poor.In addition, in the ornament of comparative example 1～6,8,9, the removing of tunicle, form and to carry out smoothly again, particularly in the ornament of comparative example 1～4, comparative example 8, the removing of tunicle, form again and be practically impossible.The ornament of each comparative example is difficult to be suitable for and makes clock and watch exterior trim part, and its special requirement has the characteristic as ornament, and as the characteristic of practical product.

In addition, the ornament that uses the various embodiments described above and each comparative example to make, assembling wrist-watch as shown in Figure 5.Such wrist-watch is carried out evaluation same as described above, then can obtain result same as described above.

Claims (17)

1, a kind of ornament is characterized in that, it has:

Base material, described the base material part of near surface are at least mainly formed by Ti and/or stainless steel;

Main the 1st tunicle that constitutes by TiCN, it is located on the described base material;

Main the 2nd tunicle of forming by M, it is located at opposing face one side described the 1st tunicle and described base material opposite face, a kind of or at least two kinds of elements that the M representative is selected from Ti, Pt, Pd and In;

And C content in described the 1st tunicle and N content sum are 5 weight %～30 weight %.

2, a kind of ornament is characterized in that, it has:

Base material, described the base material part of near surface are at least mainly formed by Ti and/or stainless steel;

Main the 1st tunicle that constitutes by TiCN, it is located on the described base material;

Main the 2nd tunicle that constitutes by TiCN, it is located at opposing face one side described the 1st tunicle and described base material opposite face;

And C content in described the 2nd tunicle and N content sum are less than C content in described the 1st tunicle and N content sum; C content in described the 1st tunicle and N content sum are 5 weight %～30 weight %.

3, ornament as claimed in claim 2, wherein, C content in described the 2nd tunicle and N content sum are 2 weight %～10 weight %.

4, as each described ornament of claim 1 to 3, wherein, the C content in described the 1st tunicle is 3 weight %～12 weight %.

5, as each described ornament of claim 1 to 4, wherein, the N content in described the 1st tunicle is 2 weight %～18 weight %.

6, as each described ornament of claim 1 to 5, wherein, the C content in described the 1st tunicle is less than the N content in described the 1st tunicle.

7, as each described ornament of claim 1 to 6, wherein, the average thickness of described the 1st tunicle is 1.6 μ m～5 μ m.

8, as each described ornament of claim 1 to 7, wherein, the average thickness of described the 2nd tunicle is 0.15 μ m～0.5 μ m.

9, as each described ornament of claim 1 to 8, wherein, described the 1st tunicle becomes embrane method to form by gas phase.

10, ornament as claimed in claim 9, wherein, it is ion plating method that described gas phase becomes embrane method.

11, as each described ornament of claim 1 to 10, wherein, described the 2nd tunicle forms by ion plating method.

12,, wherein, between described base material and described the 1st tunicle, has one deck basalis at least as each described ornament of claim 1 to 11.

13, ornament as claimed in claim 12 wherein, has the main layer that is made of Ti as described basalis.

14, as claim 12 or 13 described ornaments, wherein, the average thickness of described basalis is 0.1 μ m～2.0 μ m.

15, as each described ornament of claim 1 to 14, wherein, the face that is provided with described the 2nd tunicle one side records Vickers hardness Hv under 10gf load be 600～1000.

16, as each described ornament of claim 1 to 15, it is clock and watch exterior trim parts.

17, a kind of clock and watch is characterized in that, have each described ornament in the claim 1 to 16.

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